import 'dart:math';

import 'package:flutter/material.dart';
import 'dart:async';

import 'package:flutter/services.dart';
import 'package:zhiwen/zhiwen.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatefulWidget {
  const MyApp({super.key});

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _platformVersion = 'Unknown';
  final _zhiwenPlugin = Zhiwen();

  @override
  void initState() {
    super.initState();
    initPlatformState();
  }

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initPlatformState() async {
    String platformVersion;
    // Platform messages may fail, so we use a try/catch PlatformException.
    // We also handle the message potentially returning null.
    try {
      platformVersion =
          await _zhiwenPlugin.getPlatformVersion() ?? 'Unknown platform version';
    } on PlatformException {
      platformVersion = 'Failed to get platform version.';
    }

    // If the widget was removed from the tree while the asynchronous platform
    // message was in flight, we want to discard the reply rather than calling
    // setState to update our non-existent appearance.
    if (!mounted) return;

    setState(() {
      _platformVersion = platformVersion;
    });
  }

  @override
  Widget build(BuildContext context) {
    return ScaffoldMessenger(
      child: MaterialApp(
        home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              Text('Running on: $_platformVersion\n'),
              ElevatedButton(
                onPressed: () async {
                  bool result = await _zhiwenPlugin.openDevice("USB", 9600);
                },
                child: const Text('打开设备'),
              ),
              ElevatedButton(
                onPressed: () async {
                  await _zhiwenPlugin.closeDevice();
                },
                child: const Text('关闭设备'),
              ),
              ElevatedButton(
                onPressed: () async {
                  var random = Random();
                  int randomNumber = random.nextInt(100); // 生成 0 到 99 的随机整数

                  Map<String, dynamic> result = await _zhiwenPlugin.enrollFingerprint(randomNumber);
                  print(result);
                },
                child: const Text('录入指纹'),
              ),
              ElevatedButton(
                onPressed: () async {
                  int userId = 24;
                  Map<String, dynamic> result = await _zhiwenPlugin.verifyFingerprint(userId);
                  print(result);
                },
                child: const Text('验证指纹'),
              ),
              ElevatedButton(
                onPressed: () async {
                  Map<String, dynamic> result = await _zhiwenPlugin.deleteAllFingerprint();
                  print(result);
                },
                child: const Text('删除所有指纹'),
              ),
              ElevatedButton(
                onPressed: () async {
                  int userId = 2;
                  Map<String, dynamic> result = await _zhiwenPlugin.deleteOneFingerprint(userId);
                  print(result);
                },
                child: const Text('删除单个指纹'),
              ),
              ElevatedButton(
                onPressed: () async {
                  Map<String, dynamic> result = await _zhiwenPlugin.identifyFingerprint();
                  print(result);
                },
                child: const Text('识别指纹'),
              ),
              ElevatedButton(
                onPressed: () async {
                  Map<String, dynamic> result = await _zhiwenPlugin.getUserCount();
                  print(result);
                },
                child: const Text('获取指纹总数'),
              ),
            ],
          ),
        ),
      ),
    ));
  }
}